Re: Hash algorithm analysis

2018-07-22 Thread Adam Langley
Somewhere upthread, Brian refers to me as a cryptographer. That's flattering (thank you), but probably not really true even on a good day. And certainly not true next to Joan Daemen. I do have experience with crypto at scale and in ecosystems, though. Joan's count of cryptanalysis papers is a

Re: Which hash function to use, was Re: RFC: Another proposed hash function transition plan

2017-06-16 Thread Adam Langley
On Fri, Jun 16, 2017 at 6:24 AM, Johannes Schindelin wrote: > > And while I am really thankful that Adam chimed in, I think he would agree > that BLAKE2 is a purposefully weakened version of BLAKE, for the benefit > of speed That is correct. Although worth keeping in

Re: Which hash function to use, was Re: RFC: Another proposed hash function transition plan

2017-06-15 Thread Adam Langley
(I was asked to comment a few points in public by Jonathan.) I think this group can safely assume that SHA-256, SHA-512, BLAKE2, K12, etc are all secure to the extent that I don't believe that making comparisons between them on that axis is meaningful. Thus I think the question is primarily